Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
Make
Category
Subcategory
Condition
In Stock
Price
-5%
Part no. 6901469
BMW E60 E87 E90 F10 F30 Relay Electrical Unit Black 4 Pin Tyco 6901469
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6935597
Parking Sensor BMW E81 E87 E90 E91 PDC Front Rear Titansilber Silver - 354
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6951674
BMW E81 E87 E90 PDC Parking Sensor Ultrasonic Sparkling Graphite A22
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7837273
BMW 1 3 Series E81 E87 E90 E91 PDC Parking Ultrasonic Sensor Le Mans Blau Blue
Promo price
PLN 27.95
PLN 26.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 7802261
BMW E60 E61 E81 E87 E90 Alternator Generator Valeo 180A N47 7802261
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7176068
BMW X3 E46 E63 E83 Mini R50 R53 Control Unit Xenon Light 1307329074
PLN 142.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6980177
BMW X1 X3 X5 X6 Z4 Z8 Relay Changeover Function Green 6980177
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6950131
BMW X3 E83 Z4 E85 Front Rear Door Mid-range Audio Loudspeaker 6950131
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6928934
Antenna Amplifier BMW E82 E90 E92 Diversity Signal Boost 6928934
PLN 75.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9162930-WB
BMW E81 E82 E87 E90 E91 Parking Sensor PDC Ultrasonic Bluewater - 896
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6988303
BMW F20 F30 E60 E65 X5 E70 X6 E71 E84 Air Wiring Sensor Quality AUC 6988303
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 6777641
Air Module Wiring BMW X5 E70 E81 E87 E90 E91 E92 E93 Steering Wheel Loom
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6956746
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Monaco Blue A35 6956746
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1668210151
Impact Sensor Mercedes W166 W176 W246 Crash Sensor A1668210151
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 2755393
Sensor Mat Mini Cooper R55 R56 R57 R58 R59 R60 Passenger Side 2755393
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6988965
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Spacegrau 6988965
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7549393
Negative Cable BMW E81 X1 E84 E87 E90 E91 E92 E93 Ground Earth Battery 7549393
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6938297
Flap System Motor BMW E81 E82 E87 LCI E88 Top Active Cooling Flap Unit 6938297
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. E87-E90-PLUG-SOCKET-LOOM-PDC
BMW E81 E82 E87 E88 E90 E91 E92 Plug Socket Loom PDC Parking Sensor
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9253111
BMW F20 F21 F22 Positive Plus Pole Battery Blow Off Cable 9253111
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1472984
Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 5-Pin Black Relay Wiper 1472984
Promo price
PLN 18.95
PLN 18.00
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9124112
BMW E81 E82 E87 E90 E91 E92 Mini Cooper R55 R56 R60 Rain Light Sensor 9124112
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8352336
BMW X3 X5 E39 E46 E60 E61 E83 E90 E91 Glove Box Torch Charger Sock 8352336
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1K0909606C
Crash Impact Sensor Volkswagen Golf Audi A4 Q7 A6 C6 Air Module Unit 1K0909606C
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1388911
BMW E36 E38 E21 E85 R52 R57 Change-Over Contact Relay Violet 1388911
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7802158
BMW E60N E81 E87N E90 E90N E91 E91N E92 E93 Wiring Harness Engine Glow Module
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9119444
BMW E81 E87 LCI E90 E91 E92 Front Fuse Box Power Distribution 9119444
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8373700
BMW E60 E63 E87 E90 E91 Relay Make Contact White Green 8373700
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8363668
BMW X3 X5 Series E53 E83 Steering Column Turn Indicator Switch Stalk 8363668
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9119446
BMW E81 X1 E84 E87 E90 E91 E92 Fuse Box Power Distribution Unit Front 9119446
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6925966
BMW X3 E83 LCi Rear Right Door Window Lifter With Motor O/S 6925966
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7537612
BMW X5 E53 E60 E81 E87 E90 Engine Vacuum Control Electric Valve 7537612
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6915327
BMW E46 E39 E60 E81 E87 E90 E91 F10 F20 F30 Relay Make Contact Sky Blue 6915327
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9251702
BMW 1 2 3 Series F20 F21 F22 F30 F31 F32 Connecting Wire Sat Nav Champ/Mask-CID
Promo price
PLN 47.95
PLN 43.16
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 2757044
Mini R55 R56 R57 R58 Right O/S Electric Window Lifter Motor 2757044
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9261612
Ultrasonic Parking Sensor BMW F20 F21 F23 F87 PDC Black 9261612
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9164355
Battery Cable BMW E81 X1 E84 E87 Lead Negative 9123571
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7796892
BMW E60 E61 X3 E83 X5 E70 X6 E71 Starter Motor Diesel 7796892
PLN 61.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7631109
BMW F20 F21 F30 F32 F87 Battery Cable Negative IBS 7631109
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9284594
BMW 1 2 Series F20 F21 F30 F30 Mini F56 Front Seat Sensor Mat Left N/S 9284594
PLN 66.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9348726
BMW F20 F21 F30 Air Module Control Unit 0285013626 9461918 9296494 6826983
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1742690
BMW E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6931507
BMW E60 E61 E63 E87 E90 E91 F10 Diagnosis Interface Most 6931507
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8E0035411B
Audi A4 B7 Door Speaker Tweeter Front Left Right N/O/S 8E0035411B
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6940624
BMW E81 E87 E90 E91 E92 Ultrasonic-sensor PDC Arktis Metallic A34 6940624
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 8509023
BMW E90 E91 E92 E93 LCI X1 E84 X3 F25 Alternator Generator 180A N47N 8507624
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9207913
BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0025407097-1
Mercedes W221 Air Pump Valve Pressure Electric Change Over Sensor A0025407097
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2128204926
Mercedes W212 Crash Impact Air Module Sensor Front Unit A2128204926
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8379094
BMW X5 Series E53 Rear Right Door Stereo Audio Loudspeaker O/S 8379094
Promo price
PLN 18.95
PLN 18.00
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9270495
BMW X5 X6 5 6 Series E70 E71 F10 F11 F12 PDC Ultrasonic Sensor Black 9270495
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9134280
BMW E81 E82 E87 E90 E91 Air Module Control Unit No Crash Data 9134280
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8377654
BMW X5 E53 AmplifIer Trap Circuit Antenna Booster Diversity 8377654
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 7229173
Fuel Pump Control Unit BMW E60 E61 E81 E87 E90 Fuel Pump Module ECU 7229173
PLN 61.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 3402979
BMW X3 Series E83 2.0d Diesel M47N2 Wire Line Lead For Preheater System 3402979
PLN 46.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7301554
BMW F10 F20 F30 F32 Control Unit For Fuel Pump 7301554
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9114342
Distance Control Sensor BMWE81 E87 E90 PDC Parking Sensor Montego Blue 9114342
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7612860
BMW F20 F21 F30 F31 F32 Battery Holder Bracket Supporting Rail 7612860
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9804157
BMW F20 F21 F22 F23 LCi Mid-range Sound Speaker Stereo HiFi
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8365960
BMW E38 E39 E53 Battery Crash Disconnection Control Relay 8365960
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7794908
Preheater System Lead BMW E87 E90 E91 Diesel 7794908
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9149615
BMW E61 E65 E70 Telemetics Control Unit Bluetooth Control Unit Module 9149615
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9274428
Mini Cooper F54 F55 F56 F57 F60 PDC Parking Sensor Ultrasonic Black 9274428
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 2755516
Battery Mounting Bracket Mini Cooper R55 R56 R57 R60 R61 Clamp Bolt Holder
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 2753721
Mini R55 R56 Electric Window Lifter Actuator Motor Door Left N/S 2753721
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 7515029
Mini Cooper One R50 R52 Petrol W10 Compact Alternator 105A 7515029
PLN 284.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 6970676
BMW X5 E70 Rear Bumper PDC Cables Wiring Loom Set 6970676
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7296090
BMW Z4 F30 F31 E89 Headlight Ballast Control Unit Xenon Light 7296090
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 3412336
BMW X3 E83 Battery Cable Negative Wiring 3412336
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2165420018
Yaw Rate Sensor Mercedes W169 W245 W211 W219 Turn Rate Sensor A2165420018
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9255048
BMW 1 Series E81 E87 E87N Battery Wire Cable Negative Earth Lead 9255048 6929705
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9252639
Parking Module BMW E81 E84 E87 E90 E91 Control Unit PDC 9252639
PLN 237.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9116543
PDC Control Unit BMW E46 Z4 E85 Mini R50 R53 Parking Unit Module 9116543
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 3416765
Mini Cooper One R56 Antenna Amplifier Aerial Diversity Module 3416765
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 3414122
BMW X3 E83 Sensor Air Module Front Impact Crash Sensor 3414122
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6942675
BMW 3 Z4 Series E46 E89 Mini R50 R52 Parking Control Module Unit PDC 6942675
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6938762
Microphone BMW E60 E65 E81 E87 E90 E91 Hands Free Telephone 6938762
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 7801158
BMW 3 5 X5 Series E60 N E70 E90 F30 Exhaust Lambda Probe Oxygen Sensor 7801158
Promo price
PLN 56.95
PLN 51.26
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 3448250
BMW X3 E83 Front Door Window Lifter Regulator Motor Right O/S 3448250
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9210147
BMW F20 F30 Central Bass Speaker Stereo Subwoofer Left N/S 9210147
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9139868
BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Schwarz Black 9139868
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 6922652
BMW X3 E91 E83 Sunroof Sliding Roof Drive Unit Motor Actuator 6922652
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7631587
BMW 1 3 X5 Series E53 E81 E87 E90 LCI Battery Mounting Bracket Clamp Bolt Holder
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9284331
Mini Cooper R55 R56 LCI R60 R61 Roof Light Switch Operating Unit 9284331
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7404880
Fuel Pump Module BMW F20 F21 F30 F31 Control Unit ECU 7404880
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8379567
BMW X5 Series E53 Loudspeaker Stereo Left Front Door N/S 8379567
Promo price
PLN 18.95
PLN 18.00
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6763735
BMW X5 E60 E81 E87 E90 E91 E92 Xenon Headlight Level Sensor
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9233034-SCG
PDC Parking Sensor BMW X5 E70 F10 F11 F12 Ultrasonic Sensor Space Grey 9231283
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0045423518
Mercedes ML W164 W204 W211 CLS C219 Acceleration Sensor Module Unit A0045423518
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9196100
Mini Cooper One F55 F56 F57 B Pillar Upper Column Airbag Sensor 9196100
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6909776
BMW X5 Series E53 Control Element Light Switch 6909776
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6940623
BMW 1 3 Series E81 E82 E84 E87 E90 E91 PDC Parking Ultrasonic Sensor Quartz Blue
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0009820512
Energy Distributor Mercedes W177 W212 Power Control Unit Module A0009820512
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9224177
BMW F10 F11 F12 F13 F15 F16 Airbag Sensor Module B-pillar Crash Sensor 9224177
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6956166
Mini Cooper One R50 R53 Loudspeaker Rear 65136956166 6956166
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0001502780
Mercedes W203 CL203 W204 M272 Petrol Ignition Coil Cable Connector A0001502780
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. A2049017801
Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7567776
Starter Cable BMW E81 X1 E84 E87 E90 N52 Alternator Battery Wire B 7567776
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8387547
Fuse Box Base BMW X3 E83 Mini R50 R53 Battery Positive Cable B 8387547
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .